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M1 (? <br /> Table 4 <br /> Extraction and Emission Rates <br /> ARCO Service Station No. 2130 <br /> 7906 North El Dorado Street, Stockton, California <br /> Extraction Rate from Emissions Rate to Destruction Removal Cummulative TPHG <br /> Date Wells lb/da Atmos here(!b/da Effici c ,% Removal lb <br /> TPHG Benzene TPHG Benzene TPHG Benzene Penod Total <br /> 7/17/95 15 18 228 287 2 87 81 87 152 152 <br /> 8/29/95 3881 742 295 329 92 96 580 732 <br /> 9/22/95 3881 5 15 557 548 86 89 466 1198 <br /> 1/24/96 1508 206 411 343 97 83 121 16888 <br /> 2/21/96 7801 044 5 12 0 012 93 97 2184 19072 <br /> 3/13/96 NC NC NC NC NC NC NC 19072 <br /> 6/18/96 1056 002 019 0 003 98 85 866 1 19938 <br /> NC=Not calculated <br /> AirPermitL <br /> DRE shall be at least 95% <br /> Daily TPHG emissions shall not exceed 48 0 lb <br /> Daily benzene emissions shall not exceed 0 02 lb <br /> Fxt.rate from wells=23 fe/mm x 170 mg/m3 x 0 028 ml/@3 x I Ib/454,000 mg x 1,440 mudday=0 35 Ib/day <br /> (Ib/day) <br /> Dest Removal = 01,35-0.0118 x 100=96 6% <br /> (Efficiency-To) 035 <br /> Cum Extraction = 0.13+0.35 lb/day x 15 days = 3 6 Ib <br /> (Penod-Ib) 2 <br /> Cum Extraction = 124+3 56 = 4 80 lb <br /> (Total-lb) <br /> N\X S\0805\11406'\090596TI XLS Rev 0 9/5/96 <br />